I want to remove the menu I created and insert the WP primary menu. How do I put PHP inside PHP without breaking the install?

 

This is what I have:

<?php
   echo'<div id="lid">
          <div class="wrapper">


<nav class="nav-bar">
  <div class="nav-hold">
    <div class="nav-logo">
      <a href="/"><h1><img src="" border="0" alt="" /></h1></a>
    </div>
    <div class="nav-menu" id="nav"><i class="fa fa-navicon"></i></div>
		<ul class="nav-items">
      <li><a href="/">Home</a>
      <li><a href="/about">About</a>
      <li><a href="/newsletter">Newsletter</a>
      <li><a href="/contact">Contact</a>
      <li><a href="//facebook.com" target="blank"><i class="fa fa-facebook"></i></a> <span class="nav-icon"><a href="//twitter.com" target="blank"><i class="fa fa-twitter"></i></a></span>
    </ul>
  </div>
</nav>
          </div>
        </div>';
?>

I'm trying to replace the 'nav-menu' with this

<?php get_template_part( 'menu', 'primary' ); // Loads the menu-primary.php template. ?>

But I don't know how to put the PHP inside the PHP.

 

Thanks in advance!

I've tried an Echo but that broke it too.

Haven't been able to fix it... I've googled php inside php but no luck

Thanks!